<template>
  <div class="col-md-4">
    <form class="form-horizontal">
      <div class="form-group">
        <label>用户名</label>
        <input type="text" class="form-control" placeholder="用户名" v-model="username">
      </div>
      <div class="form-group">
        <label>评论内容</label>
        <textarea class="form-control" rows="6" placeholder="评论内容" v-model="comment"></textarea>
      </div>
      <div class="form-group">
        <div class="col-sm-offset-2 col-sm-10">
          <button type="button" class="btn btn-default pull-right" @click="getComment">提交</button>
        </div>
      </div>
    </form>
  </div>

</template>

<script>
  export default {
    name: "AddComment",
    data() {
      return {
        username: '',
        comment: ''
      }
    },
    methods: {
      getComment() {
        const username = this.username.trim()
        const comment = this.comment.trim()
        if (!username || !comment) {
          alert('请输入内容')
          return
        }
        this.$bus.$emit('addComments',username,comment)
        this.username = '',
          this.comment = ''
      }
    }
  }
</script>

<style scoped>

</style>